Ads block
Rising Sludge | Activated Sludge Process | Wastewater Treatment Plant
Rising Sludge The term "rising sludge" refers to sludge that slowly rises to the surface of secondary clarifiers. When the sludge has good settling…
Read more »
Variables That Impact Plant Operation | Activated Sludge Process | Wastewater Treatment Plant
Variables That Impact Plant Operation The operator of an activated sludge treatment plant is responsible for creating an environment conducive to the effic…
Read more »
BOD and Suspended Solids Removal | Activated Sludge Process | Wastewater Treatment Plant
BOD and Suspended Solids Removal Wastewater is a complex mixture of many different components. Suspended particles, biodegradable organics, pathogens, nutrie…
Read more »
Activated Sludge Process Control | Activated Sludge Process | Wastewater Treatment Plant
Activated Sludge Process Control To ensure proper treatment, an activated sludge plant requires influent water quality testing as well as activated sludge…
Read more »
Flocculation | Activated Sludge Process | Wastewater Treatment Plant
Flocculation After quick mixing/coagulation, the flocculation process begins, which is performed by agitating the coagulated water continuously at a lower …
Read more »
Low Effluent pH | Activated Sludge Process | Wastewater Treatment Plant
Low Effluent pH Low influent pH or low alkalinity water with nitrification are the most common causes. Both can result in regulatory noncompliance. If the …
Read more »
Foaming/Frothing | Activated Sludge Process | Wastewater Treatment Plant
Foaming/Frothing A buildup of foam or froth on the surface of the aeration tank is referred to as foaming/frothing. Foam might be thick, dark brown foam, lig…
Read more »
Coagulation | Activated Sludge Process | Wastewater Treatment Plant
Coagulation Coagulant Chemicals Coagulation and flocculation occur in steps designed to overcome the forces that hold suspended particles together, allow…
Read more »
Straggler Floc | Activated Sludge Process | Wastewater Treatment Plant
Straggler Floc Straggler floc is a large, light-colored, very fluffy floc that can be filamentous or not. A microscopic examination will quickly reveal whether…
Read more »
Dispersed Growth | Activated Sludge Process | Wastewater Treatment Plant
Dispersed Growth Individual bacterial cells or very small flocs grow in dispersed growth. The specific oxygen uptake rate (SOUR) will aid in determining the …
Read more »
Coagulation and Flocculation | Activated Sludge Process | Wastewater Treatment Plant
COAGULATION AND FLOCCULATION The chemicals added to wastewater during treatment are chosen to perform specific functions. One of the most important of these …
Read more »
Pin-floc | Activated Sludge Process | Wastewater Treatment Plant
Pin-floc Pin-floc is a tiny, dark, pinpoint-sized floc found in very old sludge. Pin-floc is associated with three distinct problems. Pin-floc is often exper…
Read more »
Types of Solids | Activated Sludge Process | Wastewater Treatment Plant
Types of Solids Total Solids Total dissolved and suspended organic and inorganic residue remaining after evaporation, expressed in milligrams per liter. Tota…
Read more »
Organisms | Activated Sludge Process | Wastewater Treatment Plant
Organisms Activated sludge contains a diverse range of living organisms that are responsible for waste decomposition during the activated sludge process. I…
Read more »
Secondary Treatment (Biological) | Activated Sludge Process | Wastewater Treatment Plant
Secondary Treatment (Biological) Secondary treatment is a biological procedure for removing dissolved and suspended organic matter from treated water. Purpos…
Read more »
Primary Treatment (Sedimentation) | Activated Sludge Process | Wastewater Treatment Plant
Primary Treatment (Sedimentation) Primary treatment is a physical (non-biological) treatment process that occurs in a tank and allows substances to settle or…
Read more »
Types of Activated Sludge Plants | Activated Sludge Process | Wastewater Treatment Plant
Activated Sludge Plants Based on the sludge age maintained in the process, there are three basic operational modes for activated sludge plants. High Rate (Mo…
Read more »
Aeration Tank | Activated Sludge Process | Wastewater Treatment Plant
Aeration Tank Operational Control Parameters An operator can optimize the biological treatment process by monitoring the operational contr...
